Yahya ibn Yahya narrated to us, saying: Abd al-Rahman ibn Mahdi informed us. And (in another chain) Zuhayr ibn Harb narrated to us, saying: Abd al-Rahman narrated to us, from Sufyan, from al-Suddi, from Yahya ibn Abbad, from Anas, that the Prophet, peace and blessings be upon him, was asked about wine being made into vinegar, and he said: "No."